Atsumi Onsen riverside Inn Azumaya Ryokan

A small seven-room ryokan in Atsumi Onsen, with the Atsumi River running right in front. There are separate men's and women's baths filled with natural hot spring water that runs a bit hot, plus a small private bath. Day visitors can bathe here too, though daytime bathing is sometimes off the table because of cleaning. Reviewers describe a quiet, family-run place with simple rooms, the sound of the river, and home-style meals.